Hose-nozzle.



1m.v 696',|74. Patented Mar. 25, 1902.y

F. HoLBnooK.

HOSE NUZZLE.

- (Application med sepa. 2o, 1901.) (Nn llodel.- ZShaets-ShnL- vauntedMar. 25, :902.

- No. s96,| 74.

P. HoLBnooK.

HSE NUZZLE.

v (Appum-.an'axea sept. no, 1901.)

2 Sheets-Sheet 2.

um www.)

'UNITED STATES PATENT OFFICE.

FRANKHOLBROOK, OF LYNN, MASSACHUSETTS, ASSIGNOR TO THE NEW ENGLAND FIRESUPPLY COMPANY, LYNN, MASSACHUSETTS, A CO- PARTNERSHIP.

HOSE-NOZZLE. 'E

SPECIFICATION forming part of Letters Patent No. 696,174, dated March25, 1902.

Application filed September 20, 1901. Serial No. 75,703. (No model.)

To @ZZ whom it may conceive:

Be it known that I, FRANK HoLBRooK, a citizen of the United States,residing at Lynn, in the county of Essex and State of Massachusetts,have invented certain new and useful Improvements in Hose-Nozzles; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

The present invention relates to hose-nozzles, and more particularly tohose-nozzles designed for use on the hose of chemical fireextinguishingapparatus.

The nozzles now commonly employed on chemical fire-extinguishers areprovided with the usual ground-cock, which must be accurately fitted inits bearing in order to prevent leakage. Experience with such cocks hasdemonstrated that they are untted for this purpose, as under the actionof the chemicals employed in the iire-extinguishin g liquids the iittingof the cock in its bearing is rapidly destroyed and soon leaks, causingmuch damage to carpets and draperies when used in extinguishing a iirewhich may be localized, as in a closet or corner of a room, and by.reason of the caking of the chemicals about the valve rendering itdilcult to operate. To overcome the objection to the use of a valve suchas referred to, it has been proposed to employ a reciprocating valvemovable longitudinally along its chamber toward and from the valve-seat.The rod carrying this valve was actuated by a nut threaded thereto,which was located so as to begrasped by the hand and turned to actuatethe valve. This construction was found to be a vast improvement on theother and to eectually prevent leakage at the valve; but it was foundthat in the hurry and confusion attendant on fighting a fire there wasgreat liability of unscrewing thenozzle from the hose while attemptingto turn the nut to open the valve, and if the nozzle should be thusloosened or accidentally removed from the hose the objectionable leakageand flowing of chemicals over places where not desired would result togreat damage in some instances to furniture and draperies.

The object of the present invention is to produce a valve for thenozzles of chemical lire-extinguishing apparatus which can at all timesbe easily and quickly operated and one in which there can be no leakage.

To the above ends the present invention consists of the devices andcombinations of devices, which will be hereinafter described andclaimed.

The present invention is illustrated in the accompanying drawings, inwhich-V Figurel shows a nozzle in front elevation embodying the same.Fig. 2 shows the device in side elevation. Fig. 3 shows a sectionallongitudinal view illustrating the interior construction. Fig. 4 shows aplan view with the forwardv section removed looking at the top of thevalve, and Fig. 5 shows the lower end of the forward section and thevalve-seat.

Similar reference characters will be employed throughout thespecification and drawings to designate corresponding parts.

In the illustrated embodiment of the present invention the hose-nozzleis formed in tWosections-fa forward section 1 and a rear section 2. anysuitable metal, preferably brass, and are formed with the male andfemale couplings 3 and 4, provided with the mating threads 5, wherebythe sections are connected together. The lower section 2 has .a threadedsocket 6, arranged to receive the mating coupling at the end of the hoseon the extinguishing apparatus. The sections 1 and 2 are bored orchambered from end to end to permit The sections 1 and 2 are cast of'the passage of the fire-extinguishing liquids therethrough, and thesection 1 is provided with a port '7, arranged to be closed by the valve8. Surrounding the port 7 is a valve seat 9, formed of leather orothersuitable material and against which the 'valve 8 is arranged to bepressed in closing the port 7. The valve 8 consists of a notched diskarranged to reciprocate in a chamber 10,formed in the upper end of thesection 2, and it is provided with lugs 1l, through which is passed apin 12, which connects the valve 8 with a link 13. The link 13 at itslower end is provided With an eccentric-band 14, arranged to ICG engagean eccentric 15, carried by a shaft 1G, which at one end is seated in abearing or seat 17, (see dotted lines, Fig. 3,) formed in a boss 1Sintegral with the wall of a substantially circular chamber 19. The otherside of the chamber 19 is closed by a cap 20,which has a threadedconnection therewith, and provided with a bearing for the opposite endof the shaft 16. Aturning of the shaft 16 causes the eccentric 15 toreciprocate the link 13 to move the valve 8 toward or away from thevalve-seat, closing or opening the port 7. The shaft 16 at one end issquare, as shown in dotted lines, Fig. 2, and upon the squared end isplaced a lever 20X, which is connected by means of arod orpin21withacorresponding;r lever 22, heldby a screw and washer 23 on;a stud orboss 2%,projecting from the closed side of the chamber 19. The lever 2Ois held to the end of the shaft 1G by means of a screw and washer 25,tapped into the end of the shaft.

As shown in Fig. 3 of the drawings when the levers 2O and 22 are movedforward they cause the eccentric 15 to advance the link 13, forcing thevalve S tightly against the valveseat 9, closing the port 7, andstopping the fiow of liquid from the apparatus. Byrocking the leversbackward or, as shown, in position Figs. 1 and 2 the eccentric 15 drawsback the link 13, removing the valve 8 from contact with the valve-seat7 and permitting the chemical liquid to liow around and through thcnotches in the periphery of said valve out of the port 7 and from thenozzle in a stream under considerable pressure.

1t will be noted that in the present invention there is no possiblechance for a leakage about the valve or in the nozzle, as the valve doesnot turn in its bearing, but has a reciprocating action toward and fromthe port. 1t will be further noted that the lever and eccentric foractuating the valve provide considerable leverage, whereby the valve maybe quickly and readily moved toward and from its seat.

Having described my invention, I claim as new and desire to protect byLetters Patent of the United States- A hose-nozzle provided with asuitable port and a valve-seat surrounding said port, a notched diskvalve mounted in a valve-chamber and arranged to be moved toward andfrom said valve-seat, a link connected at one end to one side of saiddisk valve and provided at its opposite end with an eccentric band orstrap, a transversely-arranged shaft provided with an eccentric engagedby said eccentric band or strap and a pair of levers provided with aconnecting-bar for turning said eccentric-shaft to reciprocate saidvalve,A

substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK HOLBROOK. fitnessesz EDMUND P. RUss, T. HART ANDERSON.

